[thomas-weissschuh:b4/auxclock-nanosleep 18/44] kernel/time/benchmarks-user.c:3:10: fatal error: 'err.h' file not found

[thomas-weissschuh:b4/auxclock-nanosleep 18/44] kernel/time/benchmarks-user.c:3:10: fatal error: 'err.h' file not found

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/thomas.weissschuh/linux.git b4/auxclock-nanosleep
head:   b5f216d75bdbbafb19ea7d79a607512cecaea2c0
commit: a876a196200710a8666ee1bd58be19f1e08fa5fb [18/44] benchmarks
config: hexagon-allnoconfig (https://download.01.org/0day-ci/archive/20260324/202603240857.agD2WmPk-lkp@intel.com/config)
compiler: clang version 23.0.0git (https://github.com/llvm/llvm-project 054e11d1a17e5ba88bb1a8ef32fad3346e80b186)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260324/202603240857.agD2WmPk-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202603240857.agD2WmPk-lkp@intel.com/

All errors (new ones prefixed by >>):

>> kernel/time/benchmarks-user.c:3:10: fatal error: 'err.h' file not found
       3 | #include <err.h>
         |          ^~~~~~~
   1 error generated.


vim +3 kernel/time/benchmarks-user.c

     2	
   > 3	#include <err.h>
     4	#include <unistd.h>
     5	#include <stdio.h>
     6	#include <sys/types.h>
     7	#include <errno.h>
     8	#include <stdlib.h>
     9	#include <signal.h>
    10	

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